<template>
    <div id="usertext">
      <textarea placeholder="按 Ctrl + Enter 发送" v-model="content" v-on:keyup="addMessage"></textarea>
    </div>
  </template>
  
  <script>
  import {mapState} from 'vuex'
  
  export default {
    name: 'usertext',
    data () {
      return {
        content:''
      }
    },
    computed: mapState([
      'sessions',
      'currentSession'
    ]),
    methods: {
      addMessage(e) {
        if (e.ctrlKey && e.keyCode === 13 && this.content.length) {
          let msgObj = new Object();
          msgObj.to = this.currentSession.username;
          msgObj.content = this.content;
          this.$store.state.stomp.send('/ws/chat',{},JSON.stringify(msgObj));
          this.$store.commit('addMessage', msgObj);
          this.content = '';
        }
      }
    }
  }
  </script>
  
  <style lang="scss" scoped>
  #usertext {
      position: absolute;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 30%;
    border-top: solid 1px #DDD;
    > textarea {
        padding: 10px;
        width: 100%;
        height: 100%;
        border: none;
        outline: none;
    }
  }
  </style>
  